Clean Water Act discharge permit · NPDES MO0111121
DEER RUN APARTMENTS WWTF, Rolla, MO: NPDES MO0111121 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
DEER RUN APARTMENTS WWTF, held by Mark Janos, holds NPDES permit MO0111121, which discharges to Tributary To Trib. To L. Beaver Cr.. EPA’s file records it issued May 13, 2020 and expiring September 30, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | DEER RUN APARTMENTS WWTF |
|---|---|
| Permittee as filed | Mark Janos |
| NPDES ID | MO0111121 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 13, 2020 |
| Expiration date | September 30, 2023 |
| Address | Rolla, MO 65401 |
| Receiving water | Tributary to Trib. to L. Beaver Cr. |
| Subwatershed | Little Beaver Creek-Little Piney Creek (HUC 102902030108) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 9Pollutants on file
- 8Under a numeric limit
- 9With a violation of any kind
- 5With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| E. coli | 4 | 58 | 24 | June 30, 2026 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 8 | 71 | 17 | March 31, 2026 | 914% over the limit |
| E. coli, colony forming units [CFU] | 0 | 14 | 10 | September 30, 2019 | 99,999% over the limit |
| pH | 4 | 64 | 8 | June 30, 2021 | |
| Solids, total suspended | 4 | 55 | 1 | March 31, 2014 | 12% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 56 | 0 | ||
| BOD, 5-day, 20 deg. C | 4 | 54 | 0 | ||
| Oxygen, dissolved [DO] | 4 | 32 | 0 | ||
| Chlorine, total residual | 4 | 28 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 11Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 17, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| April 17, 2026 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| July 8, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| July 8, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| April 18, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| April 9, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| April 9, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| January 12, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| November 16, 2023 | Reporting Violations - Failure to Submit DMRs | ST6 |
| February 20, 2020 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
| March 21, 2017 | Reporting Violations - Failure to Submit DMRs | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MO0111121 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.